78107093 has 2 divisors, whose sum is σ = 78107094. Its totient is φ = 78107092.

The previous prime is 78107089. The next prime is 78107123. The reversal of 78107093 is 39070187.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50154724 + 27952369 = 7082^2 + 5287^2 .

It is a cyclic number.

It is not a de Polignac number, because 78107093 - 2² = 78107089 is a prime.

It is a super-2 number, since 2×78107093² = 12201435953821298, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78107033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39053546 + 39053547.

It is an arithmetic number, because the mean of its divisors is an integer number (39053547).

Almost surely, 2^78107093 is an apocalyptic number.

It is an amenable number.

78107093 is a deficient number, since it is larger than the sum of its proper divisors (1).

78107093 is an equidigital number, since it uses as much as digits as its factorization.

78107093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10584, while the sum is 35.

The square root of 78107093 is about 8837.8217338890. The cubic root of 78107093 is about 427.4613222648.

The spelling of 78107093 in words is "seventy-eight million, one hundred seven thousand, ninety-three".